6. CURRIER, H. B., ESAu, K. and CHEADLE, V. I. Plasmolytic studies of phloem. Amer. Jour. Bot. 42: 68-81. 1955. 7. GALSTON, A. W. The effect of morphogenetically active light on indoleacetic oxidase activity and growtlh. Photoperiodism and related phenomena in plants and animals. (Papers presented at a symposium held at Gatlinburg, Tennessee, August 1957.) Amer. Assoc. Adv. Sci. (In press.) 8. ...

The activity of the nopaline synthase (nos) promoter is differentially regulated in several plant organs. In this article we demonstrate that the nos promoter is wound inducible in both vegetative and reproductive organs. The induction of the nos promoter was observed in leaves, stems, cotyledons, and various reproductive organs, suggesting that the response is not organ specific. The wound res...

in a completely randomized design, the effect of the extract from trifolium alexandrium (0, 0.2 and 0.4%) on the germination, some morphological characteristics, photosynthetic pigments, and nutrients uptake of prosopis cineraria was evaluated. the highest germination rate and percentage (9.16 and 21%, respectively) were recorded in the 0.2% treatment. the maximum and minimum lengths of radicle...

Chemical plant growth regulators (PGRs) are used in the production of ornamental potted and bedding plants. Growth control is needed for maximizing production per unit area, reducing transportation costs and to obtain a desired visual quality. However, the use of PGRs is associated with toxicity risks to humans and the environment. In many countries the availability of PGRs is restricted as few...

Plant growth-promoting bacteria (PGPB) are commonly used to improve crop yields. In addition to their agricultural usefulness, there are potential benefits in environmental applications. For example, species of Azospirillum can increase bioremediation of wastewater by microalgae by increasing algal proliferation and metabolism. Additionally, these genera and several other bacterial species may ...

One of the tasks in contemporary biotechnology, pharmacology and other fields of human activities is to obtain biologically active substances from plants. They are very essential in the treatment of many diseases due to their actually high therapeutic value without visible side effects. However, sometimes the possibility of obtaining the metabolites is limited due to the reduction of wildgrowin...

The nutritional adequacy of plant-based diets is discussed. Energy and protein intakes are similar for plant-based diets compared with those containing meat. Fe and vitamin B12 are the nutrients most likely to be found lacking in such diets. Bioactive substances present in foods of plant origin significantly influence the bioavailability of minerals and requirements for vitamins. Well-balanced ...

The action of growth substances in causing cell elongation is closely linked to respiration, and many respiratory inhibitors also inhibit growth (COMMONER and THIMANN, 3, BONNER, 1, 2). In the study -of the way in which growth substances act to bring about growth it is therefore useful to have inhibitors which will suppress the action of growth substances without affecting respiration of the tr...